Dataset: MSM20/5 - Simrad EM120 Data
Imprint
| HOME Imprint |
| Archive | unpublished |
| Dataset citation | unpublished |
| Metadata of dataset | ISO 19115/19139, FGDC |
| Cruise | MSM20/5 |
| Navigation system | Merian - Seapath 200 |
| Horizontal reference system (EPSG) | WGS84 geographic (4326) |
| Sonar system | Simrad EM120 |
| Sonar type | multibeam |
| Depth definition | true depths |
| Depth datum (EPSG) | MeanSeaLevel depth (5715) |
| File format | Simrad multibeam processing format |
| File listing | 529 files, as XML file |
| Tracklength [km] | 4127 |
| Generalised track ¹ | KML file |
| Gross coverage [km²] (unedited - no warranty) | 37804 |
| Usage | Primary data are generally not depth-edited and should not directly be used for final product compilations. |
| Maintenance | Update frequency of dataset: notPlanned |
| Constraints | Access: onDemand Use: copyright |
| Status | completed |
| Purpose | |
| Abstract | The multi-beam echosounding system (MBES) Kongsberg EM 120 of the MARIA S. MERIAN was used for deep-sea bathymetric surveys. 1) The Multibeam survey during transit from Freeport was outside the main objectives of MSM20-5. The speed during transit was ~ 12 knots. No CTD runs were performed prior to North Pond. A sound velocity profile from the former cruise (MSM20-4) was used. The beam angle was 120°. 2) While on site, the time between the ROV dives was dedicated to Multibeam surveying. The objective was to produce a high-resolution map of the whole area around North Pond. An area of ~ 5500 km² has been covered with a grid-resolution of 2 arc-seconds. A beam angle of 90° was used. 3) The Multibeam survey during transit from North Pond to St. John’s was performed with an average speed of 11 knots and a beam angle of 120°. |
| Sonar system operators | Janis Thal |
| (MaNIDA) data level | 0 |
| Data quality / Lineage | |
| Point of contact | MARUM bathymetry data responsible party |
| Aggregation |
(¹): KML file is created online from database applying track generalization ±50 meter.